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authorHeiko Carstens <heiko.carstens@de.ibm.com>2012-05-25 09:39:29 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2012-05-30 09:07:30 +0200
commitb9e3f776c811cc0647c7360844714b6a9b5fd0ef (patch)
treee6af8730518a4600e56b287e41d4df8a950a5181 /arch/s390/kernel/sysinfo.c
parents390/kernel: Fix smp_call_ipl_cpu() for offline CPUs (diff)
downloadlinux-b9e3f776c811cc0647c7360844714b6a9b5fd0ef.tar.xz
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s390/cpu: remove cpu "capabilities" sysfs attribute
It has been a big mistage to add the capabilities attribute to the cpus in sysfs: First the attribute only contains the cpu capability of primary cpus, which however is not necessarily (or better: unlikely) the type of cpu the kernel runs on, which is typically an IFL. In addition all information that is necessary is available in /proc/sysinfo already. So this attribute partially duplicated informations. So programs should look into the sysinfo file to retrieve all informations they are interested in. Since with this kernel release also the powersavings cpu attributes are removed this seems to be a good opportunity to remove another broken interface. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/sysinfo.c')
-rw-r--r--arch/s390/kernel/sysinfo.c21
1 files changed, 0 insertions, 21 deletions
diff --git a/arch/s390/kernel/sysinfo.c b/arch/s390/kernel/sysinfo.c
index 2a94b774695c..fa0eb238dac7 100644
--- a/arch/s390/kernel/sysinfo.c
+++ b/arch/s390/kernel/sysinfo.c
@@ -393,27 +393,6 @@ static __init int create_proc_service_level(void)
subsys_initcall(create_proc_service_level);
/*
- * Bogomips calculation based on cpu capability.
- */
-int get_cpu_capability(unsigned int *capability)
-{
- struct sysinfo_1_2_2 *info;
- int rc;
-
- info = (void *) get_zeroed_page(GFP_KERNEL);
- if (!info)
- return -ENOMEM;
- rc = stsi(info, 1, 2, 2);
- if (rc == -ENOSYS)
- goto out;
- rc = 0;
- *capability = info->capability;
-out:
- free_page((unsigned long) info);
- return rc;
-}
-
-/*
* CPU capability might have changed. Therefore recalculate loops_per_jiffy.
*/
void s390_adjust_jiffies(void)